Re: [MI400] What is main memory resident?

["Mark Waterbury" <mark.s.waterbury@xxxxxxxxxxxxxxxx>]

Hi, Leif (et al):

Yes, automatic performance adjustment (QPRFADJ) is "on" (3)
by default, but I usually tell my customers to turn it "off" (0), and
show them how to tune their systems "manually", by adjusting pool
sizes for interactive, batch, etc., unless there are compelling reasons
why they should get better results by using "automatic" tuning, or
if they have purchased some "auto-tune" type of product from
another vendor... :-)

Regards,

Mark S. Waterbury

----- Original Message -----
From: "Leif Svalgaard" <leif@leif.org>
To: <mi400@midrange.com>
Sent: Friday, July 26, 2002 9:31 AM
Subject: Re: [MI400] What is main memory resident?


> From: Paul Godtland <plg@us.ibm.com>
> > Leif Svalgaard said:
> > |Mark, I don't think any of your suggestions would work.
> > Actually, Mark's suggestion of using a separate pool for specific work
will
> > behave as he expects. Main store pools are respected at the lowest
levels
> > of storage management. Of course, the pool must have been created
> > separately and only used for the planned activity, or pages may be used
for
> > other purposes. If automatic performance adjustment is turned on, it may
> > also take pages from one pool for another.
> >
>
> thanks Paul (and apology to Mark), but the fly in the ointment seems
> to be the Automatic Performance Adjustment that may move pages
> around. Isn't the adjustment normally turned on (default)?
>
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